Printing device for attribute printing

Details Printing device for attribute printing Printing device for attribute printing

1987-06-09

1988-06-07

Sewell, Paul T.

Typewriting machines

For typing or forming continuous or discontinuous line

Including programmed-control-system

400 22, 400 63, 400210, 400304, 400696, B41J 2926

Patent

active

047492899

ABSTRACT:
In a printer for printing an attributed character by printing a character part and an attribute part separately, the invented printer or typewriter is so constructed that only an attribute part, e.g., an underline part or a bold face part, is printed in case a printed character is detected to already have the attribute, i.e., is underlined, or bold face, thereby preventing a character part of the printed character from being double printed. This results in improved quality in printed characters and in complete clear character erasures. The printer is also effective for overprinting attribute parts to over a desired range of printed characters.

REFERENCES:
patent: 3913721 (1975-10-01), Koplow
patent: 4084680 (1978-04-01), Deetz
patent: 4323315 (1982-04-01), Demonte
patent: 4500216 (1985-02-01), Demonte
patent: 4686649 (1987-08-01), Rush
patent: 4692045 (1987-09-01), Makita

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